​Words in Context

​Former astronaut Ellen Ochoa says that although she doesn't have a definite idea of when it might happen, she ____ that humans will someday need to be able to live in other environments that those found on Earth. This conjecture informs her interest in future research mission to the moon.

Which choice completes text with the most logical and precise word or phrase?
A. demands
B. speculates
C. doubts
D. establishes

Steps:
1. Circle the logical connector.
2. Underline the target content.
3. Pick choice that logically connects to target.

​Former astronaut Ellen Ochoa says that although she doesn't have a definite idea of when it might happen, she ____ that humans will someday need to be able to live in other environments that those found on Earth. This conjecture informs her interest in future research mission to the moon.

Which choice completes text with the most logical and precise word or phrase?
A. demands
B. speculates
C. doubts
D. establishes

​Former astronaut Ellen Ochoa says that although she doesn't have a definite idea of when it might happen, she ____ that humans will someday need to be able to live in other environments that those found on Earth. This conjecture informs her interest in future research mission to the moon.

Which choice completes text with the most logical and precise word or phrase?
A. demands
B. speculates
C. doubts
D. establishes

​In studying the use of external stimuli to reduce the itching sensation caused by an allergic histamine response, Louise Ward and colleagues found that while harmless applications of vibration or warming can provide a temporary distraction, such _____ stimuli actually offer less relief that a stimulus that seems less bening, like a mild electric shock.

Which choice completes text with the most logical and precise word or phrase?
A. deceptive
B. innocuous
C. novel
D. impractical

​In studying the use of external stimuli to reduce the itching sensation caused by an allergic histamine response, Louise Ward and colleagues found that while harmless applications of vibration or warming can provide a temporary distraction, such _____ stimuli actually offer less relief that a stimulus that seems less bening, like a mild electric shock.

Which choice completes text with the most logical and precise word or phrase?
A. deceptive
B. innocuous
C. novel
D. impractical

​Given that the conditions in binary star systems should make planetary formation nearly impossible, it's not suprising that the existence of planets in such systems has lacked ______ explanation. Roman Rafikov and Kadron Silsbee shed light on the subject when they used modeling to determine a complex set of factors that could support planets' development.

Which choice completes text with the most logical and precise word or phrase?
A. a discernible
B. a straightforward
C. an inconclusive
D. an unbiased

​Given that the conditions in binary star systems should make planetary formation nearly impossible, it's not suprising that the existence of planets in such systems has lacked ______ explanation. Roman Rafikov and Kadron Silsbee shed light on the subject when they used modeling to determine a complex set of factors that could support planets' development.

Which choice completes text with the most logical and precise word or phrase?
A. a discernible
B. a straightforward
C. an inconclusive
D. an unbiased